Known for its arched limestone, Mareha Cape/Tanjung Mareha in the southwest part of Sumba is not only beautiful above the water. The underwater beauty is also worth exploring. This is the place where the possibility of seeing whale sharks and manta rays is open.

Clownfish, triggerfish, butterflyfish, and damselfish are often seen around the healthy coral reefs. With a variety of colors of branching and table corals and Gorgonian sea fans, diving in this area is undoubtedly one for the book.